>>> Werner Almesberger <werner@openmoko.org> Wed Aug 25 06:36:02 2010 -0300, 5 weeks ago The parasitic capacitance of the three probe input pins and R1 formed a quite formidable low-pass filter that almost completely eliminated the 1 MHz signal.
>>> Werner Almesberger <werner@openmoko.org> Sun Aug 22 21:32:54 2010 -0300, 6 weeks ago New circuit: an arbitrary-precision counter.